Why use aluminum welding tape instead of masking tape, duct tape, or aluminum duct tape?
Home improvement tapes are NOT designed for high-purity welding applications and may not be allowed on many jobsites. The adhesive is not engineered to withstand welding applications, and will contribute to substandard, contaminated welds that are messy to clean up.
Aluminum welding tape is formulated with no contaminates in the adhesive, resulting in high-quality welds.